diff --git a/style/style.go b/style/style.go
index 86ea4f3..96b1ecb 100644
--- a/style/style.go
+++ b/style/style.go
@@ -84,10 +84,8 @@ func NewStyles() *Styles {
 
 func (s *Styles) HasStyle(name string) bool {
 	var done bool = false
-	for key := range s.List {
-		if done = key == name; done {
-			break
-		}
+	if s.List != nil {
+		_, done = s.List[name]
 	}
 	return done
 }